A short review on polycyclic aromatic hydrocarbon contamination

Abstract Polycyclic aromatic hydrocarbons (PAHs) are prevalent environmental pollutants produced by incomplete combustion of biomass including fossil fuels, wood, and coal. The majority PAHs in the environment emits from anthropogenic activities, while some released naturally occurring phenomena, such as volcanic activities. Consequently, concentration is significantly higher industrialized urban areas than rural areas. Human exposure to results many health problems, depending on PAH type, time method exposure, individual status. readily transport between soil, water, atmosphere. Four main processes involved transportation volatilization, absorption, leaching, erosion. However, factors affect PAHs‘ transportation, molecular weight, vapor pressure, soil matrix, climate condition, topography. Various remediation techniques have experimented order remove natural environment. Bioremediation, particular, an optimistic way that can be done bacteria, fungi, alga.